The DRAO galactic-plane survey. II. Field at l= 105.

A systematic complete mapping of the northern Galactic plane at 408 MHz is being carried out with the synthesis telescope at the Dominion Radio Astrophysical Observatory, along with incomplete mapping at 1420 MHz in the continuum and the 21-cm line of atomic hydrogen. In this paper, the results for the second field to be analyzed, centred at l = 105^deg^, b = 2^deg^ are presented. The field-of-view at 408 MHz is about 8.1^deg^ and is about 2.6^deg^ at 1420 MHz. The nearby presence of the extremely strong source Cas A has limited the sensitivity of the observations, owing to dynamic range limitations of the telescope. At 408 MHz, 213 compact sources have been detected, complete to about 250 mJy, and 92 compact sources have been catalogued at 1420 MHz, complete within the field-of-view to about 30 mJy. Differential source counts at 408 MHz indicate the presence of an appreciable population of compact Galactic sources in the flux-density range of 200 mJy - 1 Jy. Spectral indices for many of the compact sources have been derived, both from the present observations and from comparisons with other data in the literature. Several extended sources of emission have been detected, and one of these appears to be newly identified supernova remnant. Another may also be a supernova remnant or an H II "bubble". Several of the compact sources have spectral indices indicating interesting properties; two are possible young supernova remnants, several have flat spectra indicating possible compact H II regions, while one has an exceedingly steep non-thermal spectrum. Two features in the H I data cube have been selected as worthy of further analysis, having possible counterparts in the radio continuum.